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Last month I bought 2 of those artillery fire data computers.
Both are HP-41CV coming with 2 modules.

The first Gunzen (AFDC 02, 37-0198-01) had 2 Zeproms inside:
AFDC F-MDP2 (08K, XR 17 with 52 FCNs, XR 18 with 63 FCNs)
MFDC-2.3 MDP (16K, XR 16 with 61 FCNs, XR 17 with 35 FCNs,
XR 18 with 62 FCNs, XR 19 with 01 FCN)

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=588&item=3204754596
The second one had 2 Proms inside:
AFDC1F-MDP1 (08K, XR 15 with 30 FCNs, XR 16 with 55 FCNs)
AFDC1F-MDP2 (08K, XR17 with 52 FCNs, XR 18 with 63 FCNs)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=2308511311
Both need an extra module with XR 31.
May be a 105, 155 or Abbot module.
If someone has further information or another ROMs, ...
Thanks for assistance.

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The second Gunzen (AFDC 01)
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