There are two folios per signature and these are sewn onto an accordion folded spine with 6 mountain folds. The last signature has three folios. This amounts to 25 pages for photographs (if using the front side only) or 50 pages if you are using fronts and backs (which is not recommended for a photo album unless there are interleaves and it isn't recommended in that case either).
The endsheets are a beautiful French Marbled paper that has a gold iridescence.
The finished dimensions of the photo album are 12" by 12" which will allow two 4 by 6 photos per page (in either orientation) or one 8 by 10 photo (in either orientation). The accordion spine allows for the the album to expand once the photos are added and the extra long ribbon will keep the album shut should it splay open once it is filled.