Just guessing- - - - -you've probably got a trans from the late 1920's or early 30's. In the mid-1930's GM launched an advertising campaign for the "silent second gear"- - - -a transmission with constant-mesh helical gears and synchronizers to do the actual shifting rather than sliding straight cut gears in and out of mesh. People were so used to the noisy straight cut 1st. and 2nd. gears that they would drive for miles in second- - - -forgetting to shift to high gear which was direct drive.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!