| Brief History
This will explain a brief history. This will overview the history of the large frame B-Series from 1959-1970 with the coresponding Simplicity machines showing the differences within the years.
The 1959 Wonderboy 700 mfg# 990169 was the first year Simplicity offered riding tractor. Prior to the 700, Simplicity offered a walking tractor and riding mower; the creation of the 700 merged these two machines. The Wonderboy 700 had the power take-off points of the walking tractor and the ability of the operator to actually ride the machine. Most of the attachments for the first 700 machine were actually adapted from the prior years of walking tractors.
Chronological List of changes in the B-Series and corresponding Simplicity Machines:(need to verify the years...)
1959 AC B1 & Simplicity 700
First year of the classic tractor style. Did not have a firewall(name?) and could come with only a pull cord (i.e. no starter).
1963 Simplicity 725
The 725 had an upgraded engine.
1964 AC B-10 Early & Simplicity Landlord
This was the first year the hydrolift was offered and the firewall(name) was added.
1965 AC-BigTen & Simplicity 101
This was the year the front steering mechanism was beefed up.
1966 AC-B10 late, B12 & Simplicity Landlord 2010, 2012
This was the first year a 12hp engine was introduced; These were the B12 and 2012 being short frame machines.
1968 AC-B110, B112 & Simplicity 2010, 3012
1969 AC-B110, B112 & Simplicity 2110 & 3112
1970 B210, B212 & 2210 & 3212
B-10 & B-12
B-110 & B-112
B-210 & B-212
Soveriegn 3112, 3112H