https://emulsive.org/articles/5-frames-of-ilford-hp5-plus-on-a-werra-i-35mm-format-ei-500-cal-zeiss-jena-50-2-8-tessar-by-victor-lefelman
5 Frames... Of ILFORD HP5 PLUS on a Werra I (35mm Format / EI 500 / Carl Zeiss Jena 50/2.8 Tessar)