If you can post some picture, perhaps we can help identify them. A good CRT data book can help too or use this website:
http://www.bunkerofdoom.com/tubes/syl59/HTMLS/CRT.HTM
For example, there aren't many 16" round glass CRTs. Some like the LP4 and ZP4 are so similar they are lumped together into one datasheet.
16JP4 - 70 degree deflection
16LP4/16ZP4 - 54 degree deflection
16WP4 - 70 degree deflection