Anyone know for a fact if this really was an available stock color on the 280Z's?

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=6187&item=2472321990

the zhome.com paint code list doesn't list orange as an available color for the 260-280Z's. Now I'm wondering what else is missing from the list. Her's the zhome list.

"260Z / 280Z Colors

215 White (from 8/75 on)

214 Dark Brown (from 8/73 - 7/76)

240 Green Metallic (from 8/75 on)

301 Brown Metallic (from 8/73)

302 Leaf Green Metallic (from 8/73)

303 Green Metallic (8/73 - 7/75)

304 Gold Metallic (8/73 - 7/75)

305 Light Blue Metallic (from 8/73)

306 Silver Metallic (from 8/73)

307 Blue Metallic (from 8/73)

362 Dark Purple Metallic (from 8/75)

517 Beige Metallic (from 8/76) (aka: Lt. Gold)

611 Wine Red Metallic (from 8/76) (aka: Burgundy)

901 Silver Metallic"

My 78 is code 510 which is a blue metallic and it's not on that list. As far as 'for a fact' I couldn't say but in all my years of Z interest I don't recall seeing a 'factory orange' 280.

so i know there's prob some 78 colors not listed