I forgot to note that Colville must have spent a fair amount of time in the Joseph Jakob(sometimes seen as Jacob) shop. To tell the truth, I don't know what his specialty might have been but he would scratch one off of whatever you might desire. I'd guess he made 7 to 10 a year up till the 1890s and then just a couple a year dwindling to about zero. He may have made more per year when sourcing either of the Lindners from the mid 1870s to the mid 1880s. I forgot to add his sons were named Andrew & Henry and they appeared to been reduced to peddling footware toward the end.

Kind Regards,

Raimey
rse