I work at a public library that houses an archival collection. We have a copy of a map lithograph from the Dominion Lands Office (Canada) dated 1878. I was trying to determine what the projection of the map might be and was wondering if it would be appropriate to ask a question about that on GIS Stack Exchange?
I tried to find something online, and there is no small amount of information about map projections online. Unfortunately, I'm just having trouble interpreting the descriptions into a set of criteria to compare against the map I have.
The map we have has curved parallels and meridians that are wider at the bottom than the top. (The top being closer to the pole in this case.) I think this makes the map a conical projection, but I'm not sure. Also, I thought perhaps I might be able to find a flow chart or similar to help me make a more precise determination. On the other hand, maybe this is simply a lot more difficult to do for someone who is not a map expert.
Update I have now asked Determining projection of paper map? on the main site.