Capacitor ID

and the other side...




This is a 1uf capacitor (polarized) - will any electrolytic suffice as a replacement? This is the only odd-ball cap on the board, perhaps there was a reason it was chosen.

Schematic: http://www.fenderrhodes.com/org/ch11/fig11-8.jpg
(see bottom left)
This is a 1970 (circuit circa 1967) fender rhodes preamp board.

Thanks!
adam