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Technical manual: Monarch Extension user’s guide
![Technical manual: Monarch Extension user's guide. Manual open.](https://coimages.sciencemuseumgroup.org.uk/245/732/small_thumbnail_2015_0498__0002_.jpg)
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Technical manual: Monarch Extension user’s guide
Details
- Category:
- Archive
- Object Number:
- 2015-498
- Materials:
- paper (fibre product), metal plated (unknown) and plastic (unidentified)
- type:
- document
- credit:
- BT Heritage and Archives