four figures out of his wallet. Usual? Collectorsâbig money collectorsâgo for the unique, the unusual. Theyâre all specialists.â
âItâs a certain kind of specialist weâre looking for, Mr. Gilden,â Nate said. âHas anyone offered to buy anything from you that you, ah, shouldnât be expected to have?â
âLike a government document, for example?â Ves added.
â I know what you mean,â Mr. Gilden said, his eyes wide. âSpies! Someone must be trying to pass secret information out of the country disguised as an autographed letterâor concealed in the binding of a first edition; Iâll bet thatâs it!â
âNot exactly, Mr. Gilden,â Swift said.
âThatâs good thinking, though,â Ves encouraged. âBut weâre looking for someone who might be making really odd requests. Either buying or selling. Something you just wouldnât expect them to have.â
âI see what you mean,â Mr. Gilden said, shaking his head rhythmically up and down. âYes. Wait here a minute, I have something to show you.â He trotted off toward the vault at the back of the showroom.
âAha!â Ves said. âWhat do you suppose?â
âIt couldnât beââ Nate said. Then he shook his head a bit sadly. âNo, I suppose not. That would be a bit much.â
âIâm sure weâre not going to find the, ah, document itself, Nate,â Ves told him softly. âSome clue, some trace, some starting point; thatâs the best we can hope for, and it should be enough for us.â
âAll kinds of nuts in this business,â Mr. Gilden said, coming back to the little table with a small, flat box, looking like a cigar box built to hold one layer of cigars. âMind you, these arenât for sale.â He opened the box and removed several gold coins, which he spread out on the felt top of the table for display. On the face of each coin was an arrogant, strong-nosed, self-willed head, in profile, surrounded by the legend AARON BURR IMP. MEXICO. On the reverse was the device of an eagle on a cactus clutching a snake; on top the words UN EAGLE DâOR. Underneath was the motto: Donât Tread on Me , and the date: 1827.
âThe things people do,â Mr. Gilden said, holding one of the coins between thumb and forefinger and examining it closely. âThe workmanship someone put into this, itâs incredible. Aaron Burr was never emperor of Mexico, you know.â
âI know, it was Hamilton,â Nate couldnât help saying.
âMaximilian,â Mr. Gilden said, not seeming to notice. âI looked it up. The things people will do for a joke, or a hoax. Incredible. These are mint-quality coins. Really first rate.â
âWhere did you get them?â Swift asked.
âI bought them. For their weight in gold, you understand. But theyâre so fine, Iâm not going to melt them down. Twenty of them.
âThe Federal Bureau of Weights and Measures is going to borrow three,â Swift told him, pulling his identification card holder from his jacket pocket. âYouâll get a receipt of course, and weâll have them back to you undamaged in about a week.â
âIâve heard that before,â Mr. Gilden said, snatching up the coins. âThatâs one of the oldest tricks in the books.â
It took a half hour to straighten that one out, to convince Brown, Lupoff & most particularly Gilden to entrust three of the coins to a representative of the Federal Government. Nate and Ves returned in high humor to Nateâs office in the ancient building that housed the Observational Branch of the Bureau of Weights and Measures.
âPhone call,â Swiftâs secretary declared firmly as they entered the office. She was holding the handpiece at armâs length and facing away from her. âItâs him . Iâve been afraid to put him
Under the Cover of the Moon (Cobblestone)