Santi Bose aka Santa Rose

I received this email from Bob Boyles:

In San Francisco, in 1976, while waiting on my flight to Osan AFB, Korea, I struck up a conversation whith a retired Air Force Master Sgt. on his way back to the Phillipines. We parted ways at Travis AFB, California and he presented me with a handmade pen and pencil holder for my desk that I would occupy in Korea. It is in the shape of a Valentine type heart, obviously handmade, with two holes on the top of the heart for pens or pencils. It appears to have been glazed in a kiln (?) with hand painted reddish orange braid around the top-left edge of the heart and blue-green braid around the right edge.
On the right side of the heart is handlettered
SOUVENIR
BAGUIO CITY
1969
On the left side of the heart is handlettered
MAY '69
I don't recall the name of the man who gave it to me in 1976 but he had told me he had gotten it from a "kid about 17 or 18 years old named Santa Rose" while he had been stationed with the USAF in the Phillipines in 1969. I was 27 yrs. old in '76 and I just stuck the heart in my duffle bag and somehow the heart has manged to stay wiht me through all these years and many, many moves.
There's no name on the heart but I came across the heart yesterday while showing my 11 year old granson some of my Air Force and travel keepsakes. My grandson is a pretty clever kid ( not just because he's mine ) so he wanted himself and I to research Baguio City. When we looked Baguio City up on the internet we also came across " Santi Bose " which, to me, was very close to " Santa Rose " that the man had called the "kid" that made it in 1969 (?).
That's all I can recall about how, where and from whom I obtained my Baguio City 1969 heart but my grandson and I are letting our curiosity get the best of us. Will you please take a moment or two to share your thoughts on my ( now, according to my grandson ) OUR small treasure which is 3 inches by 2 and 1/2 inches in size.
Thanks for taking the time to read this "book" that I've written here but a reply would thrill us both.
~~Bob Boyles and James Ferguson ( 11 yrs. )