If you’ve ever held an old letter or photo in your hands, even something as seemingly mundane as an old picture of some unknown great-grandparents, you’ve experienced the thrill of touching history. Being in physical contact with such an object connects you quite literally with its original owner or creator; it bestows upon you the responsibility of preserving their memory, sometimes completely lost except for the little piece of paper you hold delicately between your thumb and forefinger. California’s Capital Show: Antique Paper, Post Card and Collectibles will feature historic photos, books, autographs, movie memorabilia and over a million old postcards. Experts at the show also can provide appraisals and invaluable tips on preserving and storing your own family treasures. The show takes place at the Scottish Rite Center, 6151 H Street, from 10 a.m. to 5 p.m. on Saturday and from 10 a.m. to 4 p.m. on Sunday. Admission is $5. For more information, call (916) 971-1953 or visit the Web site at www.californiascapitalshow.com.