It was a classic image of two up and coming billionaires, the 1981 Microsoft Photo of Bill Gates and Paul Allen which signaled the beginning of their journey in the world of commercial computer technology. It will make Microsoft, both Bill Gates and Paul Allen, and the 1981 Microsoft Photo they took together, notable names and pieces of Silicon Valley history.

As reported by Forbes, in the far corner of Paul Allen’s Living Computer Museum in Seattle hangs a blown up photo of the tech billionaire with friend and Microsoft co-founder Bill Gates. Back then, in 1981, the two were the industry’s boy wonders, Allen was 26 and Gates was 28.

The black and white photo features a baby-faced Gates and bearded Allen posing with the technology of the era: Early desktop computers. It was also the year that the duo launched Microsoft’s operating system, MS-DOS, which runs on IBM personal computers.

On Tuesday night, at a very private event at the Living Computer Museum, Gates and Allen recreated their famous pose, mirroring the details of the 1981 Microsoft photo. It surprised a group of IT veterans assembled to celebrate the achievements of the past 40 years of computing.

Before smiling for the cameras, the two friends stood together, away from the crowd of mingling tech pioneers, catching up quietly in a corner while looking at some of their handiwork from Microsoft’s earliest days.

Other artifacts on display at the museum were fully restored and usable computers, which can be traced back as far as 1964. Gates’ and Allens’ resumes from before their Microsoft days were also on display. The resumes hung side by side and showed how much hiring practices have changed over the years. Back then, both men have included their height and weight on the 1974 documents.

Gates listed his salary on his resume at $15,000 a year. He is today a philanthropist with a net worth of $67 billion.

Allen’s resume, then a junior at Washington State, wrote that his objective was to be a “systems programmer.”

Tuesday’s event was officially closed to the media.