White and aluminum, or even pastel pink, artificial Christmas trees are the epitome of vintage holiday decor. Of course if a traditional green Christmas tree is more up your alley, you can still achieve a vintage look by dressing it with silver tinsel and garland and by adding vintage inspired ornaments and lights (like these or these).
Aside from your tree, a retro Christmas look can be achieved with a fun wreath like one made from vintage ornaments or a mod glass ball wreath. A glittery mantle display with fake snow and vintage little elves is another beautiful, but fun retro look.
Christmas decor from the 50s and 60s used a lot of sparkle and tinsel which is easy to recreate and add to your existing decor with small touches like this pretty tinsel mini tree. And for a 40s look, I think a leg lamp is essential to your decor!
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