looking for AMIP restart files

[atmospherics]

I am looking for some simulations and restart files: the FHIST or AMIP simulations with prescribed SST, running from 1850 to the 21st century.
I can only find such simulations starting from 1950 to 2014. And I am unsure whether there are any simulations as requested, but any suggestions/help would be much appreciated.
PS. I am working on Derecho. Thank you very much!

 

[islas]

There are prescribed SST experiments that run from 1850 described here: CAM6 Prescribed SST AMIP Ensembles | Community Earth System Model. These differ from the CMIP6 AMIP simulation in the choice of SSTs and sea ice being prescribed. Unfortunately I don't think the restarts for these runs are saved throughout the simulation though.