Perforation gauge

a philatelic tool used to measure perforations

en-GB/ˌpɜːfəˈɹeɪʃən ˈɡeɪd͡ʒ/
en-US/ˌpɝfəˈɹeɪʃən ˈɡeɪd͡ʒ/

دسته بندی ها:

philatelic accessoriesmeasurement scalemeasuring instrument