No pockets on chest because a vest was intended to be worn over the jacket.
Tag and Collar:
Barely legible date stamp indicates it was made for the East German Army (NVA; Nationale Volksarmee) in the first quarter of 1988 (1/Y) (source: https://www.onvauc.org/east-german-uniform-date-chart). “1958” is not the year.
Collar has elastic like an MA-1 flight jacket. “K 48” is the size, with the “k” meaning “kurz” ( German word for short). This size is equivalent to a US Medium Short (source: https://www.varusteleka.com/en/page/east-german-size-chart/22445).
Internal pockets are only on the arms. The rank slip is for a Gefreiter (equivalent to a Private First Class, source: http://www.nva-flieger.de/index.php/mil/dv/10-0-005/dienstgrad.html).
Rank Slip Loop:
Rank slip goes on a buttoned fabric loop.
Also has elastic for insulation like the P59 Denison Smock.
Inside of jacket as an integrated holster like the TTSkO paratrooper jacket. The fabric loops for foliage on the back are sewn onto fabric reinforcement on the inside.
The buttons have been positioned so that the gas flap needs to be buttoned in to fully close the jacket.
Elastic cinch, again for insulation?
Load Bearing Vest:
Vest body is made from same twill fabric as East German uniforms.
Same pebbled plastic button used on other East German uniforms.
Left Bottom Front Gas Mask Bag:
On the front in the bottom left side. Meant to hold an SchM-41 gas mask.
Same design as standard separate belt-mounted East German AK magazine pouch. Like all pouches on the vest, this is stitched onto the main body.
Upper Back Pack:
Backpack is a patch pocket on upper back. Loops above the flap are meant to attach a chemical protective cape (Schutzbekleidungsumhanges, SBU). These do not have any metal hooks attached, a characteristic of the last East German Fallschirmjager vests.
Loops are a synthetic webbing material.
Sticker inside pack:
Back Gas Mask Filter/Canteen Pouch:
Holds 2 gas mask filters and a canteen. Made from synthetic material.
Bottom Back Small Pouches:
General purpose for a thin rain jacket, bandages, and other small items.
Body of vest is secured by snap hooks.
Holster on inside of left side (as worn). A fragment of a Makarov holster was found inside:
1/D stamp indicates 1st quarter of 1990, after the fall of the Berlin Wall and just before East and West Germany reunified (source: https://www.onvauc.org/east-german-uniform-date-chart).
Pocket Contents Diagram:
Grey beret was for field use. “P” marking means this was made in 1986.