Found in 1997, Aiou Office Supplier Co., Ltd. is a specialized China woodstock typewriter manufacturer and wholesaler of office equipment and office products. All of our OEM woodstock typewriters have the characteristics of easy operation, long lifespan, and beauty figures. To ensure product quality and stability, our sources materials from overseas countries, conducts scientific manufacturing, and implements strict QC inspections & tests at every stage of manufacturing. In addition, we are the only company within the Chinese mimeograph industry that has passed the State Mechanism Industry Bureau test and is quality credit insured by PICC.

Don Sutherland's very first contribution to the site is this surprising machine; it's clearly labeled as a No. 6 model, with 14 inch carriage. This contradicts the serial number lists which indicate wide carriage machines having a serial prefix of "8." Jim's machine above has a "B" prefix with wide carriage and is a No. 5; this machine has a "J" and is a No. 6. It's the only Woodstock No. 6 we know of at the moment (February 2008.)
Final patent date on left-most decal is 1921. "Typewriter Topics" indicated in 1923 that the No. 6 appeared in early 1922, with the No. 7 (18 inch carriage) following soon thereafter. As we can see on this page, the separate model numbering for wide carriage machines was not permanent. These were advertised as brand-new and not rebuilt machines. The distributing agent, namely the Anell' Typewriter Company, was located in Chicago, Illinois. A section of the ad is seen below.

Serial number N-317115, built about 1931. Here, we have the first serious alterations to the machine. Note that the front, sides and rear are now enclosed by panels designed to fit the frame openings. Not only does this machine add a shift lock key to the right side, duplicating that on the left, it also has the later-style shift mechanism which includes a shaft running along the front frame of the machine. Look at the keyboard of the No. 5 seen above, and note that the shift key levers simply run back into the machine. On this 1931 machine and later units, a new leverage system was employed, which can barely be seen in these shots, but is present nonetheless. Note also the hinged ribbon spool covers. Note that the logo matches that on the pre-war / post-war body seen above. Finish is overall black crinkle. Decal on the rear indicates Woodstock Typewriter Co, and it is known that Woodstock advertised its own machines rebuilt in its own factory.

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