Vintage SAN FRANCISCO 49ers Niners Embroidered Polo Shirt pre-1988 Spectrum

This is a great looking soft polo with two small darker red spots that are really tough to see unless in REALLY bright light. I tried to show them in pics but it is hard to see. This must be from before 1988 as that is when the Niners won their 3rd Super Bowl and it is not listed on this shirt. Please see images and title for description. Thanks and good luck!