Any font with a similar per sign might do: one where the verticals are close to each other and the serif at the top left points down, not up.

Scotch Modern  Sugerido por claudeserieux 

What is the sign over the number 9?

The sign over number 9 is the one I was most interested in - the per sign.

“The 1892 edition of the Practical Printing of John Southward showed a series of non-alphabetic characters in its example of an ‘improved’ upper case which had not been in a normal case earlier in the century. […] types for the calligraphic ‘per’ and for lb (the pound weight). These were all needed for use in commercial jobs like the printing of catalogues of goods for sale. […] The ‘per’ symbol (which was admittedly a rather elaborate design) failed to get onto the normal typewriter keyboard and has faded from memory."
http://typefoundry.blogspot.com/2013_10_01_archive.html

⅌ per sign U+214C

Thanks

Section sign is reversed.

Still looking to identify the font, preferably a version of the per sign with more narrowly-spaced verticals as in John Southward's 1892 Practical Printing.

A digital version that comes reasonably close to your sample would be the Monotype Modern. But being a digital font it - almost by definition - lacks the character you are after.

Suggestion

Thanks - the verticals of Scotch Modern are a good match, though the serif at the top is quite different, and the loop around the middle points up in SM, but down in Southward's. One that is a closer match would be ideal, if possible.