Mystery Orioles throwback game from 1991, or old picture on 92 Fleer card?

Looking through all of my throwback cards I found this odd one.  1992 Fleer card of Carlton Fisk.  

The player in the background has a #19 on the helmet, with only the #1 showing on the front of his jersey.  This card should be showing pictures from the 1991 season.  The Orioles player is wearing  what looks like home throwback uniforms from 1966.  There is a record of the Orioles wearing 1966 throwbacks on June 19th, 1991 against the Twins.  Shown below are cards with this throwback jersey on.  
From top left and across

• Billy Ripken 2B on 6/19
• Jeff M. Robinson SP on 6/19
• David Segui 1B on 6/19
• Bob Milacki - DNP on 6/19 - it looks like a warmup shot though
• Jeff M. Robinson - front of card
• Todd Frohwirth - DNP on 6/19 - autographs and looks posed
• Randy Milligan - PH on 6/19
• Brady Anderson - LF on 6/19
• Ben McDonald - DNP on 6/19 - autographs
• Cal Ripken JR - SS on 6/19
• Gregg Olson - RP  on 6/19

The 1991 Orioles jersey, from the Game Used Guide, the Orioles script had an underline on it.  So this jersey w/o the underline is likely the 1966 throwback.  Similar font, but without the underline.  

A few details from the above cards

• Players are all wearing belts
• The piping on the pants, collar, and sleeves is thicker Orange stripe with thinner Black stripe down the middle.  Same as the normal uniforms that year.    
• Not shown on these cards are the Orioles had solid dark batting helmets that year.  

A few details on the person in the Fisk card.

• The person on the Fisk card has different piping on the pants.  It is Orange, then White, then Black down the side.  
• They also have an elastic waistband on their pants.  
• The number on the helmet is #19.  Ben McDonald was #19 that year for the Orioles and wouldn't have batted.  

The Orioles did have this combination in 1988; elastic waistbands, Orange/White/Black piping on pants, but the collar had thicker stripes that the Fisk card doesn't appear to show.  I would think it would be odd for a 1992 card to show a picture from 1988 though.  If this is from 1988 Larry Sheets wore number 19 and batted from the left side.  They also used that same batting helmet in 1988.    

The jersey Fisk has on does appear to be the 1987-1990 Road Jersey.  Grey with  the red outline of navy, and the numbers on the left leg.  You can just make out the bottom left corner of the "2" next to his glove.  

A mystery game from 1991 of the Orioles wearing their 1966 throwback uniforms against the White Sox is not as it initially appears.  Fleer decided to use a minimum 3 year old picture to represent Carlton Fisk from the 1991 season.