I've seen a number of early (Meadville, Pa) Yosts that look just like a Hollands or Reed from the same era, and the Meadville isn't far from Erie.
Reed 33 and Yost 33....awfully similar if you ask me, and more than what I'd call a coincidence. Reed also sold this line on a swivel with the center lock...trying to find a picture of a 33. Of course I already have a picture of a 34, and can't find a 33 now!
Some info I have found so far.
Gilmore M. Yost worked for Emmert vises first, his name is a witness on a 1902
Emmert patternmakers vise patent.
In 1907 Yost submitted a patent for a patternmakers vise very similar to an Emmert, the patent was granted in 1908.
From Dayid's site.
##Company founder G..M. Yost spent 6 years running the Emmert Vise Co prior to starting the GM Yost Co. In 1916 he left (sold?) the company to go work for the Columbian Hardware Co designing vises.
##1907 G.M. Yost Co is founded in Mechanicsburg, PA with IE Yost as President, GM Yost as VP and General Manager, and TJ Kennedy as Secretary and Treasurer.
##1907 Purchased vise factory of Peter A. Frasse Co and moved it to Mechanicsburg, PA
##1909 Purchased the plant and equipment of the Meadville Vise Co.
##1910 Purchased the Williamson Vise Co. and moved the plant to Meadville.
##Trade names used: Stephens and Snediker quick acting vises, Yost parallel machinist vise
Since Yost had purchased 3 vise manufacturing companies I am not so sure anyone else made vises for Yost. More research might change this.
Found out I. E Yost is Isaac E. Yost.
excepting ISAAC E YOST merchant Waynesboro was born in Cumberland Coun ty Penn seven miles north of Harrisburg December 19 1859 a 5011 05 Michael and Mary Kenedy Yost natives of Cumberland County and of Ge man and English origin His father who was a farmer and dealer in real estate died in 1875 his family consisted of four children of whom Isaac E is the third The early education of our subject was received from his parents on the farm later he took a commercial course at the commercial college Pouglikeepsie NY and graduated in 1880 He was a clerk in a dry g0 d5 store for several years before he attended college chiefly in Cumberland County Penn but also clerked two years in Hagerstown Md In 1880 he embarked in mercahtile trade at Middlesburg Penn where he remained three years then came to Waynesboro and established his present business dealing in 11fl_l 5v caps boots and shoes he is also engaged in the merchant tailoring Whlch 11119 has steadily increased as he endeavors to keep first class goods and workmenHe was married February 11 1885 to Minnie D Claire daughter of I_ieV JVV Claire of W ashington County Md Mrs Yost is of English origin her mother's maiden name was Susan L Linch a sister of Judge Linch of Frederick County Md Mr Yost is a Republican in politics a member of the IOOF of the State Line Lodge No 914
https://books.google.com/books?id=W...Q6AEIJzAC#v=onepage&q=yost waynesboro&f=false
