Kinda yes, Brian.  No.7 *is* meant to be used with the parallel end 
inside
a raised barrel, and this pattern is essentially the same as the Dutch 
tool
used to cut the chime on herring barrels.  I have seen one American 
example,
blacksmith made in the 1850s, as well as a Dutch example, and two that
appear on photographs of Italian cooper's benches.  The Dutch use the 
same
name for this and a cooper's drawknife -- kufferziemesser.

But it is not the "chamfer knife" that I need to date.  The one that 
concerns
me is a very heavy tool.  The L&IJ White 1905 catalog offers this sort 
for
"hogsheads" or "the Cleveland pattern White's Improved Extra Heavy 
Double
Steel for oil, pork, and whisky barrel work."  The weight range on these 
starts
at 6 pounds and ranges up to 12 pounds.

Definitely a different critter.

Mike in Sacto

> Is number 7 on the Boisselier plate from Diderot (1750s) a chamfer
> knife?
> http://artflsrv02.uchicago.edu/cgi-bin/philologic/getobject.pl?c.18:2
2:1.encyclopedie0513">http://artflsrv02.uchicago.edu/cgi-
bin/philologic/getobject.pl?c.18:22:1.encyclopedie0513
> [2]
> 
> Brian