Some additional maps and information from the same region:
- 12. Rannikkoprikaati (SPK 21534). Battery Elomaa south of Pisinjoki on 13 September 1941.
- Linnoituspataljoona 12 (SPK 18029). Positions around Pisinjoki on 7 October 1941. A battery is shown in the coordinates I posted earlier.
- Linnoituspataljoona 12 (SPK 18029). Positions around Pisinjoki on 13 October 1941. A battery with 120 K/78 is located a bit more south of Pisinjoki than on the 7 October map and closer to your coordinates.
- Linnoituspataljoona 12 (SPK 18029). Another map of the positions at Pisinjoki on 10 October 1941.
- Linnoituspataljoona 12 (SPK 18209). Positions at Ondrosova and south of Pisinjoki in 1941.
- Linnoituspataljoona 12 (SPK 18209). Positions north of Pisinjoki in 1941.
- Linnoituspataljoona 12 (SPK 18209). Machine gun positions at and south of Pisinjoki in 1941.
- Laatokan rannikkoprikaati (SPK 17755). Artillery positions at the Lake Ladoga on 28 January 1942. No 122 mm positions are shown around Pisinjoki.
- Laatokan rannikkoprikaati (SPK 17755). Artillery positions at the Lake Ladoga on 3 February 1942. No 122 mm positions are shown around Pisinjoki.
- Laatokan rannikkoprikaati (SPK 17755). 3. Moottoroitu Raskas Patteri (3.Mt.Rask.Ptri, 4/122 K/31) is transferred to the mouth of Pisinjoki on 21 February 1942.
- Laatokan rannikkoprikaati (SPK 17755). II/Laat.RPr's artillery positions at the Lake Ladoga in February 1942.
- Laatokan rannikkoprikaati (SPK 17756). Artillery positions at the Lake Ladoga on 25 April 1942. No artillery is listed at Pisinjoki, although 102. Patteri with four 75/K/97 is mentioned to be present at Pisinjoki on another listing from 25 April 1942. 3.Mt.Rask.Ptri has been trasferred to Ontroila.
- Laatokan rannikkoprikaati (SPK 17756). 102. Patteri is renamed 4. Moottoroitu Kenttäpatteri (4.Mt.K.Ptri) on 29 April 1942.
Photographs from SA-Kuva:
SA-Kuva 75364. "Motoroitua rannikkotykistöä". Pisinjoensuu 1942.02.26. Laatokan rannikkoprikaati (SPK 17755). The battery performed test firing on 26 February 1942.
SA-Kuva 75368. "Motoroitua rannikkotykistöä". Pisinjoensuu 1942.02.26.