Sidemark AFB [monogram] Source information Source(s) P-Ln_FCR_020 Location in source P-Ln_FCR_020_p_52 Height 35 (mm) Twinmark TM0023 Rastrology(ies) using this watermark OB_14_177-177.5_6.5-7 Notes Wove paperMarP 140 Images Sidemark Sheet
