Quote:
I noticed the 1st stamp has perf on only 3 sides, iz that normal for that stamp
Yes. Known as a "straight edge" it describes stamps in the position on the sheet where they were cut apart into smaller panes for sale at local post offices. To most collectors, they are considered less desirable specimens than those with perforations all around.
Here's a further (more technical) explanation:
http://www.mostlyclassics.net/phila...EdgesEtc.pdf