![Parker Duofold Streamline Fountain Pen (1930) - Senior, Red Permanite, Extra Fine 14k Nib (Excellent, Restored) - Peyton Street Pens Parker Duofold Streamline Fountain Pen (1930) - Senior, Red Permanite, Extra Fine 14k Nib (Excellent, Restored) - Peyton Street Pens](https://cdn11.bigcommerce.com/s-5ko0zosub2/product_images/description/parker/duofoldsr_stream_red_1.jpg)
Parker Duofold Streamline Fountain Pen (1930) - Senior, Red Permanite, Extra Fine 14k Nib (Excellent, Restored) - Peyton Street Pens
![DS Parker Duofold fountain pen, stamped Made in Canada with 14ct nib, Conway Stewart no. 58 fountain pen with 14ct nib, Mabie Todd & Co. Swan Self-Filler fountain pen with 14ct gold DS Parker Duofold fountain pen, stamped Made in Canada with 14ct nib, Conway Stewart no. 58 fountain pen with 14ct nib, Mabie Todd & Co. Swan Self-Filler fountain pen with 14ct gold](https://www.dugglebystephenson.com/files/images/auctions/GUID/6764e4fa-00aa-409a-9ba4-c52743851c7a.jpg)
DS Parker Duofold fountain pen, stamped Made in Canada with 14ct nib, Conway Stewart no. 58 fountain pen with 14ct nib, Mabie Todd & Co. Swan Self-Filler fountain pen with 14ct gold
![Amazon.com: Parker Duofold Centennial Fountain Pen, Classic Black with Gold Trim, Medium Solid Gold Nib, Black Ink and Convertor (1931382) : Everything Else Amazon.com: Parker Duofold Centennial Fountain Pen, Classic Black with Gold Trim, Medium Solid Gold Nib, Black Ink and Convertor (1931382) : Everything Else](https://m.media-amazon.com/images/I/71PbGl87QKL.jpg)
Amazon.com: Parker Duofold Centennial Fountain Pen, Classic Black with Gold Trim, Medium Solid Gold Nib, Black Ink and Convertor (1931382) : Everything Else
![Parker Duofold Senior Fountain Pen (Streamline) - Canada, Burgundy, Medium (Superior, Restored) - Peyton Street Pens Parker Duofold Senior Fountain Pen (Streamline) - Canada, Burgundy, Medium (Superior, Restored) - Peyton Street Pens](https://cdn11.bigcommerce.com/s-5ko0zosub2/product_images/description/parker/duo_stream_burg_ca_2.jpg)
Parker Duofold Senior Fountain Pen (Streamline) - Canada, Burgundy, Medium (Superior, Restored) - Peyton Street Pens
![Flat Top Duofold Senior "Big Red" That... ISN'T - PARKER: (USA "Big Five") - Fountain Pen Board / FPnuts Flat Top Duofold Senior "Big Red" That... ISN'T - PARKER: (USA "Big Five") - Fountain Pen Board / FPnuts](http://vacumania.com/penteech2/duofoldimprintsspread850a.jpg)
Flat Top Duofold Senior "Big Red" That... ISN'T - PARKER: (USA "Big Five") - Fountain Pen Board / FPnuts
![Parker Duofold Deluxe Junior Streamline (1930s, Canada) - Sea Green Pearl, Medium-Broad Duofold Nib (Excellent +, Restored) - Peyton Street Pens Parker Duofold Deluxe Junior Streamline (1930s, Canada) - Sea Green Pearl, Medium-Broad Duofold Nib (Excellent +, Restored) - Peyton Street Pens](https://cdn11.bigcommerce.com/s-5ko0zosub2/images/stencil/1280x1280/products/14131/16881/duocaset_greenmbl_5__36544.1627405051.jpg?c=1)
Parker Duofold Deluxe Junior Streamline (1930s, Canada) - Sea Green Pearl, Medium-Broad Duofold Nib (Excellent +, Restored) - Peyton Street Pens
![Parker Duofold Senior Fountain Pen (Canada, 1930s) - Streamline, Lapis w/ GP Trim, Button Filler, Medium Fine Duofold Canada Nib (Excellent, Restored) - Peyton Street Pens Parker Duofold Senior Fountain Pen (Canada, 1930s) - Streamline, Lapis w/ GP Trim, Button Filler, Medium Fine Duofold Canada Nib (Excellent, Restored) - Peyton Street Pens](https://cdn11.bigcommerce.com/s-5ko0zosub2/product_images/description/parker/duosr_streamca_lapis_2.jpg)
Parker Duofold Senior Fountain Pen (Canada, 1930s) - Streamline, Lapis w/ GP Trim, Button Filler, Medium Fine Duofold Canada Nib (Excellent, Restored) - Peyton Street Pens
![Does anyone know what the "A" at the bottom of a vintage Parker Duofold nib means? I know that a "P" apparently means that the nib was manufactured by Parker itself and Does anyone know what the "A" at the bottom of a vintage Parker Duofold nib means? I know that a "P" apparently means that the nib was manufactured by Parker itself and](https://i.redd.it/67vo6lkvtpo61.jpg)
Does anyone know what the "A" at the bottom of a vintage Parker Duofold nib means? I know that a "P" apparently means that the nib was manufactured by Parker itself and
![Parker Duofold Senior Fountain Pen (Streamline) - Canada, Burgundy, Medium (Superior, Restored) - Peyton Street Pens Parker Duofold Senior Fountain Pen (Streamline) - Canada, Burgundy, Medium (Superior, Restored) - Peyton Street Pens](https://cdn11.bigcommerce.com/s-5ko0zosub2/images/stencil/1280x1280/products/1219/1586/duo_stream_burg_ca_1_1__89810.1606152760.jpg?c=1)
Parker Duofold Senior Fountain Pen (Streamline) - Canada, Burgundy, Medium (Superior, Restored) - Peyton Street Pens
![PARKER Duofold - made in Canada. Stilografica vintage, pennino oro 14 Kt originale. FUNZIONANTE. Splendido esemplare: | Bergoglio Libri d'Epoca PARKER Duofold - made in Canada. Stilografica vintage, pennino oro 14 Kt originale. FUNZIONANTE. Splendido esemplare: | Bergoglio Libri d'Epoca](https://pictures.abebooks.com/inventory/31613592680_3.jpg)
PARKER Duofold - made in Canada. Stilografica vintage, pennino oro 14 Kt originale. FUNZIONANTE. Splendido esemplare: | Bergoglio Libri d'Epoca
![Parker Duofold Junior Fountain Pen (Canada) - Mandarin Yellow, Fine Nib (Superior, Restored) - Peyton Street Pens Parker Duofold Junior Fountain Pen (Canada) - Mandarin Yellow, Fine Nib (Superior, Restored) - Peyton Street Pens](https://cdn11.bigcommerce.com/s-5ko0zosub2/images/stencil/1280x1280/products/11298/13435/duojr_mandarin_blackthreads_1__75963.1606155672.jpg?c=1)
Parker Duofold Junior Fountain Pen (Canada) - Mandarin Yellow, Fine Nib (Superior, Restored) - Peyton Street Pens
![Remarkably Interesting Parker Duofold. Not Joking. - PARKER: (USA "Big Five") - Fountain Pen Board / FPnuts Remarkably Interesting Parker Duofold. Not Joking. - PARKER: (USA "Big Five") - Fountain Pen Board / FPnuts](http://vacumania.com/essaypics/duofold_canada_bladeclip850a.jpg)
Remarkably Interesting Parker Duofold. Not Joking. - PARKER: (USA "Big Five") - Fountain Pen Board / FPnuts
![Parker Duofold Senior Fountain Pen (Canada, 1930s) - Streamline, Lapis w/ GP Trim, Button Filler, Medium Fine Duofold Canada Nib (Excellent, Restored) - Peyton Street Pens Parker Duofold Senior Fountain Pen (Canada, 1930s) - Streamline, Lapis w/ GP Trim, Button Filler, Medium Fine Duofold Canada Nib (Excellent, Restored) - Peyton Street Pens](https://cdn11.bigcommerce.com/s-5ko0zosub2/images/stencil/1280x1280/products/13998/16690/duosr_streamca_lapis_1__95936.1624905531.jpg?c=1)
Parker Duofold Senior Fountain Pen (Canada, 1930s) - Streamline, Lapis w/ GP Trim, Button Filler, Medium Fine Duofold Canada Nib (Excellent, Restored) - Peyton Street Pens
![Amazon.com: Parker Duofold Centennial Fountain Pen, Classic Big Red Vintage, Medium Solid Gold Nib, Black Ink and Convertor (1931376) : Everything Else Amazon.com: Parker Duofold Centennial Fountain Pen, Classic Big Red Vintage, Medium Solid Gold Nib, Black Ink and Convertor (1931376) : Everything Else](https://m.media-amazon.com/images/I/613GyqqKXWL.jpg)
Amazon.com: Parker Duofold Centennial Fountain Pen, Classic Big Red Vintage, Medium Solid Gold Nib, Black Ink and Convertor (1931376) : Everything Else
![Parker Duofold Senior Fountain Pen (Canada, 1930s) - Streamline, Lapis w/ GP Trim, Button Filler, Medium Fine Duofold Canada Nib (Excellent, Restored) - Peyton Street Pens Parker Duofold Senior Fountain Pen (Canada, 1930s) - Streamline, Lapis w/ GP Trim, Button Filler, Medium Fine Duofold Canada Nib (Excellent, Restored) - Peyton Street Pens](https://cdn11.bigcommerce.com/s-5ko0zosub2/images/stencil/500x659/products/16847/20923/duoSR_oneband_red_01__30050.1677457918.jpg?c=1)