Engine No. 527

Hi all,

I am looking for some engine info on P&R Steam Engine No.527. (and 585).

Is there a book that has all the engine roster info? Or a web site? I have seen both
http://www.northeast.railfan.net/phil_reading.html
and
http://www.northeast.railfan.net/rdg_steam.html
but only 585 shows up but no pics, and it looks like its a class I2c, which maybe makes it a camelback, which is not the photo I have.

In the end, I am really just looking to date 2 photos that include these engines.

Any help or direction would be appreciated.

Thanks in advance.