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Short-term liability insurance
I am a sculptor with 20 years of mountmaking experience and have worked for many years in a museum setting. I have been asked to make mounts for 10 Pueblo Pots for a museum where I was formerly a preparator. They want me to carry $1mil of general liability insurance and the museum be named as ‘additional insured’. I would be working at their facility, with their tools and equipment. I would never be in posession of the objects. I would be working on this part-time for a duration of 3 months. Can anyone recommend an insurance provider? In the past, I’ve always been under the umbrella of the institution or another businesses’ insurance. Appreciate any leads.

Just FYI - at one of the past IMF meetings, there was a smaller "pod" of mannequin talks. They might be of interest to you. ----- 7th IMF 2020 Virtual: Day 3 / Late session.
Best of luck. It's great working with clothes! - Mair La Touche