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There is the strong likelihood of the records still being in NOAA’s hands. You may wish to contact NOAA’s National Ocean Service for more information.
Occasionally, our holdings sometimes have information that pre-dates the date ranges given in our catalog. You may wish to email our Cartographic unit at email@example.com to inquire about whether they have anything on the TPM2 in their holdings.
It’s possible that there is additional information in the textual records of RG 23. We looked through the finding ads we have and identified sections of the Superintendent's Files 1866-1910 relating to equipment and science, but failed to find anything. Our search was rather cursory and we limited it to only a few categories.We also looked for records of the Computing Division, which seems to have been in charge of predictive mathematics, but we found nothing any later than 1886. We can make these records available to you should you choose to visit our College Park, Maryland, facility. For more about doing research in College Park, please see: http://www.archives.gov/dc-metro/college-park/index.html If you cannot travel to College Park, you may wish to consider hiring a professional researcher. You can find a list of researchers on our web page at http://www.archives.gov/research/hire-help/.