Items: Independence Day Firework (4th of July 2013) Empire Firework (4th of July 2014) Empire Firework (4th of July 2013) Labor Bench (2013 Labor Day Promotion)
Fireworks usually are 10-15k in the year they are released. Then add about 5-10k for previous years. Only difference would be 2012 version as there are alot less of them and it was the first promo released.
2013 Labor Benches are probably 40k per. The 2013 fireworks could fetch up to 30-40k per now, and 2014 being 10k cheaper than that I'd say