https://www.snopes.com/fact-check/resolute-desk-moved-to-mar-a-lago/
No, Trump did not move the Resolute Desk from Oval Office to Mar-a-Lago
[snip]
In truth, however, the image showed what appeared to be a replica of the Resolute Desk. Moving the Resolute Desk — a massive, 1,300-pound desk made from the timbers of a British Royal Navy ship — would be almost impossible to do without the White House press pool or members of the public noticing. There had been no reputable news reports that Trump transported the Resolute Desk out of the Oval Office since the White House moved it in February for "light refurbishing" before returning it to its original place sometime in March, based on photographs in Getty Images, a reputable database.
While it's difficult to make definitive statements about the supposed Mar-a-Lago desk due to how blurry the image is, the replica desk does not appear to have the same level of detailed carving and the dimensions look off. @PatriotTakes also pointed out in a direct message that the replica apparently at Mar-a-Lago does not appear to have the additional base first added to the bottom of the real desk in 1961 to raise its height, as requested by former President John F. Kennedy to accommodate his frame, according to the Encyclopedia Brittanica.
Multiple replicas of the Resolute Desk have been made. It's also relatively easy to purchase a replica of the Resolute Desk (as long as you have the money). As of this writing, the National Archives Store sold one for $8,995 and the White House Gift Shop sold "an exacting replica as possible" version for $110,000.
To summarize, it's not clear if the picture circulating online even represented a replica of the Resolute Desk at Mar-a-Lago. However, overwhelming evidence indicated that the Resolute Desk remained in the Oval Office, at least as of Nov. 10, and that Trump did not move it to Mar-a-Lago.
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