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<p>[QUOTE=&quot;Mill Cove Treasures, post: 442467, member: 60&quot;]Thank you for posting the additional photographs. It definitely is not a Newcomb and Macklin. Their frames had a very distinctive construction in the corners.&nbsp; Your frame does not have it.</p><p><br /></p><p>The crack in the corner on your frame is the gesso cracking.&nbsp; The lack of sharp edges around the corner of your photograph of the back,&nbsp; is also a clue that it was water gilded. That is caused by 5 to 10 layers of gesso and 2 to 3 layers of bole built up.</p><p><br /></p><p>Gesso and bole are both made with rabbit skin glue. It is a protein and any moisture reconstitutes the glue. It doesn&#039;t matter that it was only &quot;a little water&quot;.&nbsp; Eventually, most of frame will develop those cracks that you now see in the corners because of the moisture. It may not happen right away, but it will happen. </p><p><br /></p><p>Mineral spirits will not harm the gold.&nbsp; Use Q-tips or cotton balls that are not too saturated. That sponge photograph made me cringe. <img src="styles/default/xenforo/smilies/eek.png" class="mceSmilie" alt=":eek:" unselectable="on" /> Mineral spirits evaporate quickly and because it doesn&#039;t penetrate the gold, it won&#039;t harm the glue underneath it.&nbsp; </p><p><br /></p><p>There are nails in your Husar frames. The nails are counter sunk and the holes are filled in and sanded down making the nails invisible.&nbsp; I think Husar always marked their frames.&nbsp; </p><p><br /></p><p>Here is a photograph of the corner construction of a Newcomb &amp; Macklin frame.&nbsp; </p><p>[ATTACH=full]155550[/ATTACH][/QUOTE]</p><p><br /></p>

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