Sadly black light can drive one crazy, as many substances will fluoresce under black light form mustard to post 1950 white paper to antifreeze and on and on.
Michael (formerly povertyrow on the list before the great email fiasco of many years ago) ________________________________ From: MoPo List <mopo-l@LISTSERV.AMERICAN.EDU> on behalf of Tommy Barr <tommymb...@gmail.com> Sent: Thursday, November 2, 2023 5:29 PM To: MoPo-L@LISTSERV.AMERICAN.EDU <MoPo-L@LISTSERV.AMERICAN.EDU> Subject: [MOPO] What's beneath? Looking for some help please. I recently purchased a UV back-light and noticed that a linenbacked poster has some purple patches under a white background - anyone know what they might be? Tommy ________________________________ To unsubscribe from the MoPo-L list, click the following link: https://listserv.american.edu/scripts/wa-american.exe?SUBED1=MoPo-L&A=1 Visit the MoPo Mailing List Web Site at www.filmfan.com ___________________________________________________________________ How to UNSUBSCRIBE from the MoPo Mailing List Send a message addressed to: lists...@listserv.american.edu In the BODY of your message type: SIGNOFF MOPO-L The author of this message is solely responsible for its content.
