hi, Thos Ibbotson and Co was established in 1814 as a manufacturer of Joiners'
tools. Edge tools were added to the product range in 1855. The full range
encompassed joiners' tools, saws, files, engineers' and machinists' tools,
hammers, garden tools, tool chests and skates.
are the handles hexagonal on the chisels you have? can you post a pic? are they for sale?
Wm Marples and Co took over Thos Ibbotson and Sons in 1905.
(in W.L.GOODMAN british planemakers from 1700 say that Ibbotson, Thomas & co "20 Paternoster Row, ran from 1833-1909)
you might have to troll the internet for a while to get the information you require
with the chisels in question i cant find anything, if you ask Andy T nicely he might have a catalogue or some reference about them..
what i can tell you is that buy the sounds of things you have a very good set of chisels there and i bet they will be a pleasure to use. quality steel and thoughtfully engineered tools.
hope this helped.
TThttp://en.wikipedia.org/wiki/Globe_Works
http://www.wkfinetools.com/huk/Ibbotson ... -index.asp
(please not that the date are taken from sources of internet and from book of various dates)
.on a few sites and web pages they vary.
TT