Comment by han enderman:
Br(E) 04437 - images added of: 1) orig. issue, with A/B sides and CT tax code; 2) next printing, without side indications and with +IP code; 3) B-side with the next tax code, N. Recently added by redpunk was: 5) the last printing, with a new design and RT code (and which is uncommon for such a low cat.nr). - A different variant with N code (type 4) can be seen on
discogs. It omits the pictural publishers logos (as seen on types 1-3), but has their names printed (as on type 5).