Baltimore Ravens coach John Harbaugh called his brother, Jim, to see if he would be interested in a trade for veteran wide receiver Anquan Boldin.

So was Jim suspicious that his sibling would call to propose a trade?

"Oh, I'm sure he probably was suspicious," John Harbaugh said Tuesday morning at the NFL owners meetings at the Arizona Biltmore.

But 49ers coach Jim Harbaugh was not skeptical enough from making the trade come together in a matter of minutes on Monday, March 11, on the eve of the new league year.

"It was quick," John Harbaugh said. "I can tell you that."

The 49ers had two picks in the sixth round of the draft. They traded their second pick of that round, No. 199 overall, to the Ravens for Boldin, a 10-year veteran who had a big game against the 49ers in Baltimore's 34-31 victory in Super Bowl XLVII.

The Ravens dumped Boldin's $6 million salary. And the 49ers acquired a starting receiver for a draft pick that probably would not have produced a player capable of making the 49ers' 53-man roster, anyway.

"It was a situation where we were really working hard to try to do something to make it work for Anquan to stay (with the Ravens)," John Harbaugh said. "And, I believe Anquan was working hard, too. But when it came down to it, the numbers didn't work work for either side.

"In the end, we decided to make a couple calls. We knew it wasn't going to work out, as far as changing the contract around. So we were going to lose him. We thought we could work it out in the best interest of both parties."